Because a wizard told them.
Planet X does not exist. The idea of planet X was introduced because of discrepancies in the orbit of Uranus that led some scientists to think the gravity of another, undiscovered planet was pulling on it. The discrepancy was later found to be due to a small error in the estimated mass of Neptune.
Errors in the calculations of Neptune's mass led scientists to believe that there was another planet affecting Uranus' orbit. Scientist proceeded to dub this planet Planet X.
Not really. Planet X was a provisional name used to refer to a possible but unnamed planet beyond the planets known at the time. Pluto once held this title. No object currently holds it.
Planet X was a hypothetical planet which was searched for after the discovery of planet Neptune. `Planet-X` does not exist.
i don't know i think 4.868 x 1024kg
Planet X does not exist. The idea of planet X was introduced because of discrepancies in the orbit of Uranus that led some scientists to think the gravity of another, undiscovered planet was pulling on it. The discrepancy was later found to be due to a small error in the estimated mass of Neptune.
No where, it is not real.
No where because it is not real.
It actually does not mean anything. Scientists use it to describe a planet that: a) Should be there or b) Has been discovered but not named
It isn't real.
Errors in the calculations of Neptune's mass led scientists to believe that there was another planet affecting Uranus' orbit. Scientist proceeded to dub this planet Planet X.
(Actually there is one planet, That we think), we've found an objectabout 180,750,767 miles away from Pluto named Planet X .Is it real?Yet we do not know. if you know call the DIA\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
A planet after the dwarf planet Pluto It Is A Name For A Unnamed And Unconfirmed Planet See related question for Nibiru
Pluto is the least known planet within our solar system. This is simply because it is so far away - no man-made craft has ever been sent to observe it.** It should be noted that Pluto is now considered to be a dwarf planet instead of a planet, after the 2006 ruling by the International Astronomy Union that defined what a planet is.
Generally, Planet X is an undiscovered planet in our solar system. Pluto was "Planet X" until it's discovery in 1930. Scientists postulate the existence of a Planet X by noting irregularities in the orbits of other planets. Now, Pluto and anything past it discovered so far are known as dwarf planets. There maybe another planet somewhere past Pluto, but I believe Planet X now refers to extra-solar planets.
Don't think so. Some scientists think that but others thought it was just a really big meteorite.
No there is no such thing as planet x. It is just a made up thing. OK this is a new person now and planet x is real but it is usually called The Destroyer. oh and it exists but its not going to ruin the world or whatever!